11021312 has 44 divisors (see below), whose sum is σ = 22598880. Its totient is φ = 5369856.

The previous prime is 11021303. The next prime is 11021327. The reversal of 11021312 is 21312011.

It is a junction number, because it is equal to n+sod(n) for n = 11021293 and 11021302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48014 + ... + 48242.

Almost surely, 2^11021312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11021312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11299440).

11021312 is an abundant number, since it is smaller than the sum of its proper divisors (11577568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021312 is an equidigital number, since it uses as much as digits as its factorization.

11021312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11021312 is about 3319.8361405346. The cubic root of 11021312 is about 222.5415450765.

Adding to 11021312 its reverse (21312011), we get a palindrome (32333323).

The spelling of 11021312 in words is "eleven million, twenty-one thousand, three hundred twelve".